Home / 47,678.64-71,508.16-19,571.28

Finding the Fourth Proportional to 47,678.64, 71,508.16 and 19,571.28

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Solution

The fourth proportional to 47,678.64, 71,508.16 and 19,571.28 is: 29,352.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,678.64 : 71,508.16 = 19,571.28 : x
  2. Step 2: Convert to fraction form
    47,678.64/71,508.16 = 19,571.28/x
  3. Step 3: Cross multiply
    47,678.64x = 71,508.16 × 19,571.28
  4. Step 4: Simplify right side
    47,678.64x = 1,399,506,221.64
  5. Step 5: Solve for x
    x = 1,399,506,221.64/47,678.64
  6. Step 6: Final answer
    x = 29,352.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.